6545181847 has 2 divisors, whose sum is σ = 6545181848. Its totient is φ = 6545181846.

The previous prime is 6545181763. The next prime is 6545181887. The reversal of 6545181847 is 7481815456.

6545181847 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6545181847 - 2³¹ = 4397698199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6545181847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6545181887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272590923 + 3272590924.

It is an arithmetic number, because the mean of its divisors is an integer number (3272590924).

Almost surely, 2^6545181847 is an apocalyptic number.

6545181847 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545181847 is an equidigital number, since it uses as much as digits as its factorization.

6545181847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1075200, while the sum is 49.

The square root of 6545181847 is about 80902.2981564801. The cubic root of 6545181847 is about 1870.5697451796.

The spelling of 6545181847 in words is "six billion, five hundred forty-five million, one hundred eighty-one thousand, eight hundred forty-seven".